General Flashcards
1
Q
most abundant in earth’s crust
A
O, Si, Al
2
Q
most abundant in the universe
A
hydrogen
3
Q
most abundant gas in air
A
nitrogen
oxygen
argon
4
Q
most abundant noble gas
A
argonm
5
Q
most toxic metal
A
beryllium
thallium
6
Q
most metallic of all halogen
A
radon
7
Q
most potent respiratory stimulant
A
CO2
8
Q
most electronegative
A
Fluorine
9
Q
strongest oxidizing agent
A
F
10
Q
most important metal in engineering
A
Fe2
11
Q
lightest of all elements
A
H
12
Q
lightest of all metals
A
Li
13
Q
lightest of all structurally important metals
A
Mg
14
Q
present in plant pigments
A
Mg
15
Q
present in grignard’s reagent
A
Mg
